diff --git a/pkgs/by-name/ni/nixpkgs-hammering/package.nix b/pkgs/by-name/ni/nixpkgs-hammering/package.nix
index 088ae8425db7..575d213de0c9 100644
--- a/pkgs/by-name/ni/nixpkgs-hammering/package.nix
+++ b/pkgs/by-name/ni/nixpkgs-hammering/package.nix
@@ -30,7 +30,8 @@ let
     pname = "nixpkgs-hammering-rust-checks";
     inherit version src meta;
     sourceRoot = "${src.name}/rust-checks";
-    cargoHash = "sha256-QrtAalZClNc0ZN6iNqN9rFRQ7w68lEZPV5e25uXYToA=";
+    useFetchCargoVendor = true;
+    cargoHash = "sha256-cE1fzdxGa0WG2WCPs8UFnE2vzaKfU7r6LS+9HLCVJ1U=";
   };
 in